20021232101130 has 96 divisors (see below), whose sum is σ = 56075621369040. Its totient is φ = 4926881617920.

The previous prime is 20021232101113. The next prime is 20021232101231. The reversal of 20021232101130 is 3110123212002.

20021232101130 is a `hidden beast` number, since 2 + 0 + 0 + 212 + 321 + 0 + 1 + 130 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 327047878161 + 19694184222969 = 571881^2 + 4437813^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1592290 + ... + 6525170.

Almost surely, 2^{20021232101130} is an apocalyptic number.

20021232101130 is an abundant number, since it is smaller than the sum of its proper divisors (36054389267910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20021232101130 is a wasteful number, since it uses less digits than its factorization.

20021232101130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4936376 (or 4936373 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 20021232101130 its reverse (3110123212002), we get a palindrome (23131355313132).

The spelling of 20021232101130 in words is "twenty trillion, twenty-one billion, two hundred thirty-two million, one hundred one thousand, one hundred thirty".